The retailer added that it has extended its product assortment by more than 3,000 items and introduced more promotional offers.
Albert has also renamed the service to Albert Online.
"Albert Online will now offer the same range of products as compact brick-and-mortar stores. We have also expanded the number of promotions so that customers can find the same favourable prices in online sales as in brick-and-mortar stores," added Jiří Mareček, director of communications for Albert stores.
The expansion will enable more than 2,000 additional customers in Frýdek-Místek, Havířov, Přerov and Prostějov to access the online shopping service.
Shoppers in these cities, as well as Ostrava, will be able to use the same-day delivery service, the retailer noted.
A subsidiary of Ahold Delhaize, Albert generated a turnover of €2.4 billion (as of 2021) and is the fourth-largest supermarket retail chain in the country. Ahold Delhaize has had a presence in the country since 1991.
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The Albert chain operates more than 300 stores in Czechia, serving more than four million customers every week.
It employs around 20,000 people in various positions across its stores, three distribution centres and the central office in Prague.
In August of this year, the chief executive of Ahold Delhaize, Frans Muller has said that he is confident that the retailer is "well prepared to navigate the complexities of the current business environment", noting the impact of social tensions and climate effects, including the fires in Greece, on its business.